Fleet Services

We work hard to keep our customers coming back for all their maintenance and repair needs. In addition to providing repairs “Done right the first time”, we know that providing personalized service can go a long way towards ensuring the loyalty of our customers.

Full Truck Diagnostics

TDI utilizes robust diagnostic software that supports the different communication protocols such as:



Full Trailer Diagnostics

TDI utilizes an all-in-one trailer diagnostic system for ABS, brakes, and electrical testing.  Our technicians are able to perform a full inspection in one trip around the trailer.  We have invested in this technology to allow us to increase productivity, reduce costs with accurate troubleshooting and diagnostics and improve the quality of inspections and repair.

Diverse Repair Partners

TDI knows trailers!! We work with each of our customers to find a solution that “fits” their maintenance needs. Whether you are looking for emergency repairs on-site, breakdown repair nation-wide, daily dedicated techs, or in shop repairs, TDI trailer techs are here to help keep your fleet moving!

Scheduled Truck Maintenance & Inspections

The best way to care for your trucks is to have a regular maintenance schedule, TDI’s friendly staff and highly trained technicians will make your service experience as quick and easy as possible. Our goal is to keep your fleet safe and always ready for that trip down the road!

Full Service Truck Repairs

  • Brake Systems

  • Transmission Systems

  • Fuel Systems

  • Drive Lines/Clutches

  • Electrical/Air Conditioning Systems

  • Kingpins

  • Light Engine Repair

Custom Trailer Fabrication

  • Ramps

  • Hitches

  • Show & Race Modifications

  • Cages

Mobile Services

TDI has an entire fleet of mobile maintenance vehicles. Whether you need emergency roadside or on-site repairs, we are quick to respond! We hold a very high standard for response times and try our best not to make our customers wait! All TDI Mobile Service Division Technicians are well equipped with today’s latest tools. From diagnostic & light check equipment to air pressure monitoring systems and welders…we are prepared!

24/7 Emergency Mobile Repair

TDI also offers 24/7 emergency roadside service through our network of trusted providers.  We minimize downtime thru use of modern technology. We maximize uptime with greater compliance.

You’ll benefit from our industry-leading turnaround time when repairs are needed. Our services include:

  • Truck & trailer repair
  • Jump starts
  • Tire repair
  • Lockouts
  • Tire replacement
  • Battery replacement
  • Reefer repair

Any time of day…in any weather or location…our team can help. We operate 24/7/365. Call us for any type of Emergency Roadside Assistance. One call and we will get your equipment back on the road!



TDI has an unsurpassed reputation for managing your outsourced fleet PM maintenance. Regularly scheduled maintenance keeps your fleet running smooth and economical. A tailored TDI PM Program can help avoid costly repairs down the road. We identify opportunities for improving performance and reliability, reduce emissions, and maximize the life and value of the trucks and trailers in your fleet.

  • We send mobile techs to service your equipment, that have the know-how to make the most efficient repairs.
  • We are very competitive with our PM pricing and work with each customer to create custom PM program that will fit their “down-time” schedules.
  • We provide access to your equipment information in “real-time” via our cloud based PM tracking software.
  • We assign every TDI customer a dedicated Account Manager who keeps in constant contact with you. They work hand-in-hand to help you achieve better compliance ratings and minimize your costs.

Whether you have a fleet of power units, trailers, delivery trucks or medium duty vehicles our trained staff is here to make sure your equipment is maintained and compliant



Don’t want the hassle of hiring and retaining your own mechanics? Do you need to supplement your current staff with qualified techs? TDI can help!  We will work with you on devising a scheduled approach to managing daily repairs at your location(s). Our affordable rates and on-time performance is second to none

The advantages of utilizing a daily dedicated TDI Technician:

  • We provide our techs with continued training and certifications
  • We have back up techs if your assigned technician is unavailable
  • We can supply parts thru our in-house parts department (saving you the time it takes to order parts)
  • We supply the tools and equipment necessary to get the job done
  • We adhere to strict safety standards

You can customize the use of our dedicated techs. Whether it is 1 day a week or every day, as long as we can schedule it, we will do our best to accommodate you! We also make billing flexible and offer several options, from hourly rates to monthly fixed rate contracts.

Fleet Maintenance

With the stringent demands on businesses today, now more than ever companies need the freedom to focus on their core business needs without having to worry about their fleet maintenance. With TDI Fleet Services, you have a company with the kind of expertise you can trust to do just that.

Under our fleet maintenance program, TDI Fleet Services offers the resources and the technology to manage your fleet successfully. Your account manager will assist you with connecting to your mobile tech, reviewing bills, scheduling repairs, enforcing our safety standards as well as overseeing the quality of work done.


  • Mobile on-site repairs as well as preventative maintenance
  • Two full-service facility locations for significant repairs.
  • Online 24/7 preventative maintenance tracking
  • Online 24/7 real-time expense tracking and budgeting
  • Your account assigned to a personal Account Manager
  • Priority service and turn around times
  • Emergency roadside service
  • Preventative maintenance inspections
  • D.O.T. inspections


Liftgate Repair

We can install, maintain, refab and repair all models of liftgates. Our technicians are qualified to diagnose and repair structural, hydraulic, and electrical issues. We carry many parts in stock, and can provide both emergency mobile service and in-shop repairs.

Reefer and APU Repair

There is a lot at risk if your driver’s reefer unit fails. We know the importance and do whatever it takes to keep your unit cooling.  If your refrigerated units need repair or maintenance, TDI is a great alternative to dealers.  We have years of experience with all the major brands and are generally more responsive than the big name competitors.  We also provide regular scheduled maintenance of fleet reefer units and track your PM’s with full reports.

Pickup and Delivery

TDI has a dedicated, on-site driver that provides our customers who need shop work, the opportunity to get it to us faster!  Many of our customers rely on this service to help access equipment in remote locations, drop-yards and fleet managers with multiple locations

Coverage Area

With our HQ located in Downtown Fort Worth we cover the entire Dallas/ Fort Worth Metroplex and beyond!

Fort Worth  Weatherford  Waco  Denton  Bridgeport   Dallas  Lancaster  Coppell  Irving  Grand Prairie  Waxahachie  Midlothian  Mansfield  HEB  Rockwall  Arlington  Flower Mound  Mckinney  Mesquite